19916900

素因数分解:

$2^2\times 5^2\times {\mathrm{151}}^1\times {\mathrm{1319}}^1$

素因数の和:1484

約数の個数: 36

約数和(自身を含む): 43538880

約数和(自身を除く): 23621980

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 151, 302, 604, 755, 1319, 1510, 2638, 3020, 3775, 5276, 6595, 7550, 13190, 15100, 26380, 32975, 65950, 131900, 199169, 398338, 796676, 995845, 1991690, 3983380, 4979225, 9958450, 19916900]

約数ペア:

[(1, 19916900), (2, 9958450), (4, 4979225), (5, 3983380), (10, 1991690), (20, 995845), (25, 796676), (50, 398338), (100, 199169), (151, 131900), (302, 65950), (604, 32975), (755, 26380), (1319, 15100), (1510, 13190), (2638, 7550), (3020, 6595), (3775, 5276)]